Phase diagram construction
Phase diagram of octane/n -propanol/water ternary system was constructed at room temperature by titration and the detailed steps were as follows. At first, a mixture with the desired mass ratio of octane to water (RO/W) was prepared in a dry beaker. Then,n -propanol was slowly dropped to it until the ternary mixture changed from turbidity to transparency under magnetic stirring. Repetition of the above steps for different RO/W values allowed the construction of the phase diagram, in which the component content is the average value obtained by repeating all processes at least three times.